Mitsubishi Q02CPU

App
- 19
Appendix 1 Special Relay List
APPENDICES
TableApp.11 Special relay
ACPU
Special
Relay
Special
Relay after
Conversion
Special
Relay for
Modification
Name Meaning Details Corresponding CPU
M9200 SM1200 ----
ZNRD instruction
(LRDP instruction
for ACPU)
reception (for
master station)
OFF : Not accepted
ON : Accepted
• Depends on whether or not the ZNRD (word device read)
instruction has been received.
• Used in the program as an interlock for the ZNRD
instruction.
• Use the RST instruction to reset.
QnA
M9201 SM1201 ----
ZNRD instruction
(LRDP instruction
for ACPU)
completion (for
master station)
OFF : Not completed
ON : End
• Depends on whether or not the ZNRD (word device read)
instruction execution is complete.
• Used as a condition contact for resetting M9200 and
M9201 after the ZNRD instruction is complete.
• Use the RST instruction to reset.
M9202 SM1202 ----
ZNWR instruction
(LWTP instruction
for ACPU)
reception (for
master station)
OFF : Not accepted
ON : Accepted
• Depends on whether or not the ZNWR (word device
write) instruction has been received.
• Used in the program as an interlock for the ZNWR
instruction.
• Use the RST instruction to reset.
M9203 SM1203 ----
ZNWR instruction
(LWTP instruction
for ACPU)
completion (for
master station)
OFF : Not completed
ON : End
• Depends on whether or not the ZNWR (word device
write) instruction execution is complete.
• Used as a condition contact to reset M9202 and M9203
after the ZNWR instruction is complete.
• Use the RST instruction to reset.
M9204 SM1204 ----
ZNRD instruction
(LRDP instruction
for ACPU)
reception (for local
station)
OFF : Not completed
ON : End
• On indicates that the ZNRD instruction is complete at the
local station.
M9205 SM1205 ----
ZNWR instruction
(LWTP instruction
for ACPU) recep-
tion (for local
station)
OFF : Not completed
ON : End
• On indicates that the ZNWR instruction is complete at the
local station.
M9206 SM1206 ----
Host station link
parameter error
OFF : Normal
ON : Abnormal
• Depends on whether or not the link parameter setting of
the host is valid.
M9207 SM1207 ----
Link parameter
check results
OFF : Match
ON : Mismatch
• Depends on whether or not the link parameter setting of
the master station in tier two matches that of the master
station in tier three in a three-tier system.
(Valid for only the master station in a three-tier system.)
M9208 SM1208 ----
Sets master
station B and W
transmission range
(for lower link
master stations
only)
OFF : Transmits to tier2 and
tier 3
ON : Transmits to tier2 only
• Depends on whether or not the B and W data controlled
by higher-link master station (host station) is sent to lower-
link local stations (tertiary stations).
When SM1208 is OFF............B and W of host station is
sent to tertiary stations.
When SM1208 is ON..............B and W of host station is
not sent to tertiary stations.
M9209 SM1209 ----
Link parameter
check command
(for lower link
master stations
only)
OFF : Executing the check
function
ON : Check non-execution
• Set to ON not to match B and W of the higher and lower
links.
• When SM1209 is ON, the link parameters of the higher
and lower link are not checked.
• When SM1209 is OFF, the link parameters of the higher
and lower link are checked.
M9210 SM1210 ----
Link card error (for
master station)
OFF : Normal
ON : Abnormal
Control is performed depending on whether the link card
hardware is faulty or not.
M9211 SM1211 ----
Link module error
(for local station
use)
OFF : Normal
ON : Abnormal
Control is performed depending on whether the link card
hardware is faulty or not.
M9224 SM1224 ---- Link status
OFF : Online
ON : Offline,station-to-
station test, or self-
loopback test
Depends on whether the master station is online or offline or
is in station-to-station test or self-loopback test mode.
M9225 SM1225 ---- Forward loop error
OFF : Normal
ON : Abnormal
Depends on the error condition of the forward loop line.
M9226 SM1226 ---- Reverse loop error
OFF : Normal
ON : Abnormal
Depends on the error condition of the reverse loop line.
M9227 SM1227 ---- Loop test status
OFF : Not being executed
ON : Forward or reverse
loop test execution
underway
Depends on whether or not the master station is executing a
forward or a reverse loop test.
M9232 SM1232 ----
Local station
operation status
OFF : RUN or STEP RUN
status
ON : STOP or PAUSE
status
Control is performed depending on whether a local station is
in the STOP or PAUSE mode.
M9233 SM1233 ----
Local station error
detect status
OFF : No errors
ON : Error detection
Depends on whether or not a local station has detected an
error in another station.